Wheel.



L. H. PERLMAN.

WHEEL. APPLtcATIoN FILED 1u NE2'4. 1915.

Patented Jau. 28, 1919 'UNITED sTATEs PATENT oEEio'E.

LOUIS H. PERLMAN, OF NEW YORK, N. Y.

WHEEL.

Application filed June 24, 1916.

To all ywlw/2t t may concern Be it known that I, LOU- is H. PERLwAN, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improven'ients in liVhcels; and I do hereby declare the following to be a. full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in wheels of the type provided with deinountable rims. and more particularly to those, in which the demountable rims are constructed to facilitate removal and re lacenient of the tire as by the detaching o. one of the tire retaining flanges.

The object in view is the provision of a detachable Harige section capable at one and the same time of affording the maximum amount of stress resisting capacity and a maximum ciiieienecy in the matter of speedy and easy detachment and assemblage.

`Wituh these and other objects in view as will in part hereinafter be stated and in Apart become apparent, the invention' comprises certain novel constructions, combinations and arrangements of parts as subse quently specified and claimed.

In the accompanying drawing--` Figure l is a sectional elevation of a fragment of a wheel embodying the features of the present' invention, the section being taken approximately on the plane indicated by line 1 1 of Fig. 7.

Fig. 2 is a detail sectional view of that part of the main body portion of the rim, known as the main section.

Eig. s is a Simiiar View of the detachable n flange section.

Fig. 3 is a similar view of the two sections operatively connected', ythe .flanges `being broken away. l

Fig. 4 is a similar view of the two parts in their connected operative position.

Fi 5 and 6 are sectional elevations respectively of the main body portion of the rim and the detachable fia nge section thereof.

Fig. 7 is a fragmentary view in elevation of a wheel embodying the features yof the present invention, partsv being broken away and parts being seen in section.

Fig. 7 is an enlarged detail fragmentary section taken on the plane transversely of the axis, the parts seen being an enlarged show- Specification of Letters Patent.

Serial No. 105,690.

ing of the same parts disclosed'in the broken away and section 11i Fig. 7.

' Fig. 8 1s a top plan view of one of the iecessed cap screws.

lline portion at the left Patented Janes, 1919.

Fig. 9 is a view similar to Fig. of a slight-ly modified embodiment. l

Referring to the drawing by numerals, l indicates the spokes and 2, the wood felly, of an automobile wheel, which is, of course, provided with the usual hub not illustrated. Shrunk or otherwise appropriately fixed on the wood felly 2 is thefelly band or fixed rim 3,',liaving at its inner edge portion, the supporting stop flange 4 against which the demountable rim, indicated generally by the reference character A, isA adapted to contact. The said demountable rim A may be of the clenclier, straight side, or other known ty e and carries the pneumatic tire 5, the beads of which engage the retaining flanges of the rim, 'whether those flanges are of the u ing ends 8, 8,-'eapable of being separated by.

the springing of the section 7. Such crosscuts in deinountable rim structures and annular sections thereof have become known in the art as split, and in the sense in which that word is accepted, the section 7 is split but it is believed that it is' more accurately described as being cross-cut.

The main bodyportion 6 is formed with an annular groove 9 in its inner face, leaving a shoulder 10 at the outer edge of the groove.. An annular bead 11 describes the limited width of the groove 9 inwardly.

The bead 1l has its outer edge abruptly shouldered as at 12, while its inner edge 1s formed on an inclinedshoulder 13, the said incline aiding in the asseinblageof the parts ashereinafter noted, while the abrupt shoulder coperates with a corresponding shoul der of section 7 for locking the section 7 against axial dislodginent during use. The main body ortion 6 is also formed at its outer face w th an annular outstanding relatively Wide bead or thickened portion 14 for providing material for threads as will later become apparent. The section 7 in addition to being provided with the ange corresponding in character to the tire bead ietaining flange of the main body ortion 6, so as to coperate therewith is provided with an axially extending web portion 15 corresponding generally in thickness to the depth of the groove 9 and in width to the width of said groove, so as to substantially fit the groove when the parts are assembled. The said web portion extends beyond the limits described by the said groove 9 outward to and integrally with the flange of the section 7 but is offset along a line corresponding with the shoulder 12, producing in the web 15 an annular shoulder 16 adapted to lie immediately opposite and in contact with the shoulder 12. An annular groove 17 is thus produced in the web 15, the outer edge of which is formed with an incline 18, corresponding with the incline shoulder 13, the groove 17 opening outward in the web 15 and being of a width and depth substantially. equal to the width and thickness of the bead 11. Outward beyondthe groove 17, the web 15 joins the flange portion or section 7 with a shoulder'19 corresponding in depth to the thickness of the inner edge portion 20 of the main body portion 6 of the demountable rim so that when the parts are assembled, they fit together after the manner indicated inFigs. 4l and'9. It is apparent, of course, that whilethe section 7 is usually sprung in place, as will hereinafter be pointed out, if at any time, the inner edge of the web 15 is caused to contact with the inclined shoulder 13 during axial movement of the section 7, the said inclined shoulder will facilitate the springing of theeweb into place. The main bodyy portion 6 is provided with Aa fixed pin or lug 21 adapted to enter a recess or aperture 22 formed in the section 7 near one endY 8 thereon. 'The other end 8 is formed with a notch 23, undercut as clearly seen in Fig. 7a, to receive an operating tool such, for example, Aas a screw driveradaptedto bev inserted for prying the notched end inward to the dotted line position seen in Fig. 7 for facilitating disconnection ofthe section 7 from the Vmain body portion 6 of the der mountable rim.

At preferably approximately uniformly `spaced intervals vabout the periphery of the each in stance extend through a preferably l smooth-aperture 26 formed in web 15 to correspond to and'register with the respective aperture 24. The said cap screws thus hold the web 15 and accordingly the entire section 7 against being sprung radlally 1ndepend curly of the body portion 6, whereby the supporting contact with the fiange 4, and at the same time acting to press the rim A radially outward away from the body of the wheel and to tension the rim on the wheel in this position. The bolt 29 itself serves as connecting means and connector forY the wedge, anchoring the wedge to the wheel and providing an easily manipulated device for edecting the desired throw of the wedge. Each bolt 29 extends radially through the wood felly 2 and fixed rim 3 of the wheel structure and to assure effective distribution of strains, an internally preferablyA metal sleeve 30 is anchored in the wheel body for each of the bolts 29. The method of anchorage of the sleeve 30 may vary and consists preferably of a flange 31 formed at the outer end of the sleeve overlapping a corresponding part of the fixed rim 3, While the inner vend of the sleeve 30 is engaged bya ynut 32 clamping a washer 33 against the wood felly 2, whereby the sleeve 30 is effectively fixed in the wheel body. A lockingnut 34 is preferably provided for each bolt 29 for .lockirg the same against accidental backing o Y The operation of the structure should be obvious and consists in backing olf the several bolts 29V when the rim A is to be removed, until the wedging tips 28 are withdrawn from the line of the cap screws 25, whereupon the rim A may be readily and easily manually withdrawn. The rim -is rocked oft' andthe valve stem lifted out as is usual with all commercial forms of demountable rims. When the rim A is to be replaced, it is merely rocked manually over approximately into place with its inner flange portion engagin the flange 4, and the bolts 29 are then threa ed outward fo causing their wedges 28 to engage with n the cap screws 25'for locking the rim.in place.

The removal of the demountable rim A will be desirable only when; some condition of the tire requires and while the rim is off of the wheel, if it is desirable to exchange tires, to do so it is only necessary to unscrew the cap'screws 257 so as to leave the section 7 free to be sprung out of engagement with the main body portion 6 of the deniountable rim. The operator then introduces a pry or other appropriate instrument into the aperture 23 and springs the apertured end 8 gaseosa c I radially inward until the section 7 assumes 4the position indicated in' dotted lines in Fig.

7, whereupon the section 7 may be readilyY bodily removed, the pin 21 in no Way ini terfering with withdrawal of the section 7' as 1t is withdrawn with a movement which is radially inward with respect to the pin 22 at the; point where the pin is located. `Vhen the old tire has been removed and the is sprungv new one rei aced, the section' 7 back into plaoe. and the cap screws 25 are replaced as before, whereupon the rim is read)T to be reinounted on the wheel, and

` locked bythe locking elements described in detail.

1n Fig. 9 there 1s indica-ted the same structure as seen in the other figures, varying onlY in the fact that the flanges arev differently shaped, merely to accentuate the fact that the type oi' lianges is immaterial, and the invention doesnot reside in the particular form or' Iflanges. Detail description is,

therefore, thought unnecessary.

What l claim is i l. lln a demountable rhin-'the combination with a rim section, and a detachable section, adapted to cooperate therewith, the said sections being formed with means for preventing axial separation and lock receiving lmeans disposed to prevent radial separation.

2.111511 deU'IQIHitable rim, the combination with a rim section` and a. detachable section,

ing radial separation of said sections.

the said' 'sections having interlocking bead and groove connecting 1neans,.one of the Sections being cross-cut to enable radial separation, and means extending through and connecting the sections for preventing radial lseparation of said sections.

3. In a demountable rim, the combination with a rim section, and adetachable section,' 40. i

the said sections having interlocking bead' and groove lconnecting means, one of the sections being cross-cut to enable `radial separa.- tion, andy lock receiving means for preventel. A demountable rim comprising a main body portion and a detachable section, the

main body portion having a bead extending y and the detachable section having a groove adapted to coperate circumferentially,

with and receive the bead for locking the main body portion and section against. axial disconnection, and means connecting the seotion to the main body portion against radial separation, the said connecting means being adapted to receive locking means for retaining the rim onl a Wheel.

In testimony whereof I atix my signature in presence of two witnesses., 

